Vulnerability CVE-2017-7651

Vulnerability Name:

CVE-2017-7651 (CCN-142340)

Assigned:

2017-04-11

Published:

2018-04-24

Updated:

2019-10-09

Summary:

In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

CWE-400

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2017-7651

Source: CCN
Type: Bugzilla Bug 529754
(CVE-2017-7651) - Mosquitto Server Shutdown Attack

Source: CONFIRM
Type: Exploit, Issue Tracking, Third Party Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=529754

Source: XF
Type: UNKNOWN
eclipse-msosquitto-cve20177651-dos(142340)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20180331 [SECURITY] [DLA 1334-1] mosquitto security update

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20180629 [SECURITY] [DLA 1409-1] mosquitto security update

Source: CCN
Type: Eclipse Mosquitto Web site
Eclipse Mosquitto

Source: CONFIRM
Type: Patch, Vendor Advisory
https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/

Source: DEBIAN
Type: Third Party Advisory
DSA-4325

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-7651

Vulnerable Configuration:

Configuration 1:

cpe:/a:eclipse:mosquitto:*:*:*:*:*:*:*:* (Version <= 1.4.14)

Configuration 2:

cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:eclipse:mosquitto:1.4.14:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:112700	P	libmosquitto1-2.0.11-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:106176	P	libmosquitto1-2.0.11-1.2 on GA media (Moderate)	2021-10-01
oval:com.ubuntu.artful:def:20177651000	V	CVE-2017-7651 on Ubuntu 17.10 (artful) - medium.	2018-04-24
oval:com.ubuntu.bionic:def:201776510000000	V	CVE-2017-7651 on Ubuntu 18.04 LTS (bionic) - medium.	2018-04-24
oval:com.ubuntu.bionic:def:20177651000	V	CVE-2017-7651 on Ubuntu 18.04 LTS (bionic) - medium.	2018-04-24
oval:com.ubuntu.xenial:def:201776510000000	V	CVE-2017-7651 on Ubuntu 16.04 LTS (xenial) - medium.	2018-04-24
oval:com.ubuntu.trusty:def:20177651000	V	CVE-2017-7651 on Ubuntu 14.04 LTS (trusty) - medium.	2018-04-24
oval:com.ubuntu.xenial:def:20177651000	V	CVE-2017-7651 on Ubuntu 16.04 LTS (xenial) - medium.	2018-04-24

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